33640342734 has 8 divisors (see below), whose sum is σ = 67280685480. Its totient is φ = 11213447576.

The previous prime is 33640342733. The next prime is 33640342741. The reversal of 33640342734 is 43724304633.

It is a sphenic number, since it is the product of 3 distinct primes.

33640342734 is an admirable number.

It is a super-2 number, since 2×33640342734² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 33640342692 and 33640342701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33640342733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2803361889 + ... + 2803361900.

It is an arithmetic number, because the mean of its divisors is an integer number (8410085685).

Almost surely, 2^33640342734 is an apocalyptic number.

33640342734 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33640342734 is a wasteful number, since it uses less digits than its factorization.

33640342734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5606723794.

The product of its (nonzero) digits is 435456, while the sum is 39.

The spelling of 33640342734 in words is "thirty-three billion, six hundred forty million, three hundred forty-two thousand, seven hundred thirty-four".